A new method for analysis of counter beams is presented in the paper. The\nanalysis has taken into account their stiffness EI, Winklerâ??s space with modulus\nof subgrade reaction k and equality deformities of the foundation beam\nwith the ground. The solution is found by using the numerical analysis of the\nWinklerâ??s model, with variation of different moduli of the subgrade reaction\nk2 outside the force zone r , while under the force P exists the modulus of the\nsubgrade reaction k, up to the definition of minimum bending moments. The\nexponential function k 2(r ), as the geometric position of the minimum moments\nis approximately assumed. From the potential energy conditions of the\nreciprocity of displacement and reaction, the width of the zone r and the\nmodulus of the subgrade reaction k 2 are explicitly determined, introducing in\nthe calculation initial and calculation soil displacement wsi successively. At\nthe end of the paper, it presented numerical example in which the influence\nof k and k1 values on bending moments of the counter beam is analyzed. The\nessential idea of this paper is to decrease the quantity of the reinforcement in\nthe foundations, beams, i.e . to obtain a cost-efficient foundation construction.
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